formbook | 7200e6d6b1dd98a190a8624abee4b4af6794c74e7e13b5bbb0a9302ca79b5800

General

Target

Image001.exe
Size

231KB
MD5

4ea509c18030b4e71413f2b2bd3b989c
SHA1

5ba34126a4a502bf6e5305c1e647fcf4a7488677
SHA256

c0ebfff80d42551c1a910f2c7b8c08af384e5ccf49c979b7bf664e6c1b731607
SHA512

864dfbe7e07fa4fcf15b487b6c41d20aad5c90d56518f305d8eeb2229ca3e28a9728c2ae5ef4e362d10d7f9a93996f0b67b61e8b5e224b89911152fa1a9db518

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.riceandginger.com/fcn/

Decoy

bellee-select.com

unlock-motorola.com

courtneyrunyon.com

hnzywjz.com

retrievingbest.net

ayescarrental.com

beyoutifulblessings.com

heritagediscovery.net

fasoum.com

wbz.xyz

lownak.com

alinkarmay.com

coffeyquiltco.com

validdreamers.com

yuksukcu.club

buildnextfrc.com

avantfarme.com

xyfs360.com

holisticpacific.com

banejia.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1200-68-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1552-71-0x00000000000D0000-0x00000000000FE000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1084 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

Image001.exe

pid process

1420 Image001.exe

pid	process
1084	cmd.exe

pid	process
1420	Image001.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Image001.exeImage001.exewscript.exe

description	pid	process	target process
PID 1420 set thread context of 1200	1420	Image001.exe	Image001.exe
PID 1200 set thread context of 1288	1200	Image001.exe	Explorer.EXE
PID 1552 set thread context of 1288	1552	wscript.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

Image001.exewscript.exe

pid	process
1200	Image001.exe
1200	Image001.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe
1552	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

Image001.exeImage001.exewscript.exe

pid process

1420 Image001.exe
1200 Image001.exe
1200 Image001.exe
1200 Image001.exe
1552 wscript.exe
1552 wscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Image001.exewscript.exe

description pid process

Token: SeDebugPrivilege 1200 Image001.exe
Token: SeDebugPrivilege 1552 wscript.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
1288 Explorer.EXE
1288 Explorer.EXE
1288 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1288 Explorer.EXE
1288 Explorer.EXE
1288 Explorer.EXE
1288 Explorer.EXE

pid	process
1288	Explorer.EXE

pid	process
1420	Image001.exe
1200	Image001.exe
1200	Image001.exe
1200	Image001.exe
1552	wscript.exe
1552	wscript.exe

description	pid	process
Token: SeDebugPrivilege	1200	Image001.exe
Token: SeDebugPrivilege	1552	wscript.exe

pid	process
1288	Explorer.EXE
1288	Explorer.EXE
1288	Explorer.EXE
1288	Explorer.EXE

pid	process
1288	Explorer.EXE
1288	Explorer.EXE
1288	Explorer.EXE
1288	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Image001.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 1420 wrote to memory of 1200	1420	Image001.exe	Image001.exe
PID 1420 wrote to memory of 1200	1420	Image001.exe	Image001.exe
PID 1420 wrote to memory of 1200	1420	Image001.exe	Image001.exe
PID 1420 wrote to memory of 1200	1420	Image001.exe	Image001.exe
PID 1420 wrote to memory of 1200	1420	Image001.exe	Image001.exe
PID 1288 wrote to memory of 1552	1288	Explorer.EXE	wscript.exe
PID 1288 wrote to memory of 1552	1288	Explorer.EXE	wscript.exe
PID 1288 wrote to memory of 1552	1288	Explorer.EXE	wscript.exe
PID 1288 wrote to memory of 1552	1288	Explorer.EXE	wscript.exe
PID 1552 wrote to memory of 1084	1552	wscript.exe	cmd.exe
PID 1552 wrote to memory of 1084	1552	wscript.exe	cmd.exe
PID 1552 wrote to memory of 1084	1552	wscript.exe	cmd.exe
PID 1552 wrote to memory of 1084	1552	wscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1288

C:\Users\Admin\AppData\Local\Temp\Image001.exe
"C:\Users\Admin\AppData\Local\Temp\Image001.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1420

C:\Users\Admin\AppData\Local\Temp\Image001.exe
"C:\Users\Admin\AppData\Local\Temp\Image001.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1200

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Image001.exe"
3⤵
- Deletes itself
PID:1084

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nss292.tmp\xl19yxkx7ev.dll
MD5
021e31cdf92985d3de940632b4229cc2

SHA1
e18b54d4c7882a1cad146f921296c1461f1dd37b

SHA256
8b67f5fcae3d901b37b4dafc71386cb3c3cf5ca92e91e8d931c4de394b09441b

SHA512
91ace46af5fdc23e61dc5800d1bcfd8f9cbdca12c9e79f6fefa52ad51e5a062fcff46296bfadc18fdea577f99690e6d474c9ae90b24f0e4944cab4352a752e42

Download Submit
memory/1084-73-0x0000000000000000-mapping.dmp

Download
memory/1200-62-0x000000000041EAA0-mapping.dmp

Download
memory/1200-64-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/1200-65-0x00000000003E0000-0x00000000003F4000-memory.dmp

Filesize
80KB

Download
memory/1200-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1288-75-0x0000000007350000-0x00000000074BE000-memory.dmp

Filesize
1.4MB

Download
memory/1288-67-0x0000000006B30000-0x0000000006C6D000-memory.dmp

Filesize
1.2MB

Download
memory/1420-63-0x00000000024C0000-0x000000000310A000-memory.dmp

Filesize
12.3MB

Download
memory/1420-60-0x0000000074FB1000-0x0000000074FB3000-memory.dmp

Filesize
8KB

Download
memory/1552-71-0x00000000000D0000-0x00000000000FE000-memory.dmp

Filesize
184KB

Download
memory/1552-70-0x0000000000BE0000-0x0000000000C06000-memory.dmp

Filesize
152KB

Download
memory/1552-72-0x0000000002010000-0x0000000002313000-memory.dmp

Filesize
3.0MB

Download
memory/1552-69-0x0000000000000000-mapping.dmp

Download
memory/1552-74-0x0000000000930000-0x00000000009C3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads